The Red Wings are attempting to solidify their defensive corps with a trade because no top defensemen remain available through free agency.

Bouwmeester became expendable in Calgary when the Flames signed Dennis Wideman to a five-year, $26.25 million deal and the Red Wings need help on defense after captain Nicklas Lidstrom retired and Brad Stuart was traded to San Jose before he could sign with the Sharks as a free agent.

Wideman’s contract hiked Calgary’s payroll to $66.6 million, which is under the $70.2 million salary cap. But if the cap is reduced as expected when a new collective bargaining agreement is reached, that could force the Flames to dump salary and the possibility might reduce their asking price for Bouwmeester.